I have a legal system that uses blood relatives as legal unit. For example Joe owes 120K in unpaid parking fees. The court auctions his property but that only fetches 20K. Under the same jurisdiction there are 4 of Joe's relatives: his grandfather, his sister, his first cousin and his second cousin. Genetic similarity for each is (grandfather 25%, sister 50%, 1st cousin 12.5%, 2nd cousin 3.13%) or in total 90.63.
The court orders them to pay following amounts, from their property.
- Grandfather 25/90.63 = 27.5K
- Sister 50 / 90.63 = 55.1K
- 1st Cousin 12.5 / 90.63 = 13.8K
- 2nd Cousin 3.13 / 90.63 = 3.4K
If any of the relatives can't pay the full sum, the court will auction their property, if that is still not enough, the relative is considered bankrupt and released from the rest of the debt i.e. the debt doesn't cascade.
If the punishment is imprisonment, the relatives will have to do time proportionally, if instead of going to jail, Joe decides to skip town. If the punishment is death, it will be considered the same as 100 years of jail.
How would family relationships be affected?
Is there anything similar in history?